what size injectors r ideal for a 383 lt4? i have 27's but i think they r to small. would i gain any hp buy going to a 32 or 42?

 

How do you have a 383 LT4 if your sig says Trickflow heads?

Since you are asking this question I will go out on a limb and say you lack the kowledge to build a 383 that needs any more than 27lbs injector. A well done stroker will usually need a little bigger though. THE one way to know for sure is to do a datalog and look at injector duty cycle long as you know the AFR is right.

 

36 lbs or so should be fine for your setup..

 

i didn't build this motor my engine builder built it i meant to put lt1. I thought 27's were pretty low I was wanting know what other people thought. this motor is build with best money can buy seen every thing on a parts bin before it was built.i was thinking more around 32's.